Center Mode (Normal/Phantom/Wide); Rear Panel Ac Power Connections_20; Ac Power Cord 0; Ac Convenience Outlet - Rotel RSP-980 Owner's Manual

SURROUND SOUND PROCESSOR RSP-980
Place the switch in the "Off" position if your main Left and Right
speakers are full range designs with good bass response capa¬
bility.
If you are using "satellite" speakers or other designs with more
limited bass capability, put this switch in the "On" position to
redirect bass frequencies to the Subwoofer output.
Note: Unfortunately,
we
can't cover every possible combination
of speaker and switch settings in this Manual to provide specific
recommendations. You'll need to use your own ears to make final
adjustments. In particular, listen for bass overload (a "whuffing"
or 'pumping
"
sound caused by asking smaller speakers to pro¬
duce more bass than they are designed to) and adjust the HI-
PASS switches accordingly. Proceed slowly and enjoy. You may
also want to discuss this with your HOTEL dealer.
Center Mode (Normal/Phantom/Wide) ®
Dolby Pro Logic decoding derives much of its spatial accuracy
from a Center Channel speaker located very close to a TV. This
Center Channel speaker "anchors" dialog information (and other
monaural signals) to your screen for greater coherence between
the apparent point of origin for picture and sound.
Place this switch in the "Wide" ("Large-THX") position if your
system's Center Channel speaker is capable of hill-range, ex¬
tended bass response.
In "Wide" position, bass frequencies below 100 Kz are handled
by the Center Channel speaker as well as the Left Front & Right
Front speakers if there is NO subwoofer in the system. When a
subwoofer IS used, center channel bass content below 80 Hz is
routed exclusively to it.
two main speakers. If the system includes a subwoofer, signals
above 80 Hz will play through the main speakers only while bass
below 80 Hz goes to the subwoofer.
Rear Panel AC Power Connections
AC power cord 0
Be sure the power switch on the front panel of the RB-991 is
turned off (in the 'out' position). Then, connect the supplied
power cord to the AC power receptacle on the rear of the unit
and the AC power outlet.
Your RB-991 is preconfigured at the factory for the proper AC line
voltage in the country where you purchased it (either 115 volts
AC Of 230 volts AC with a line frequency of either 50 Hz or 60 Hz).
The AC line configuration is noted on a decal on the back of your
unit.
AC Convenience Outlet
This outlet lets you connect an accessory AC line filter/system
switcher such as the Rotel RLC-900. The outlet is powered when¬
ever the RSP-980 is fully active. It is off when the RSP-980 is in
"Standby" mode. We DO NOT RECOMIVIEND that you use this
outlet for a power amplifier.
Note: The AC outlet may bebest used for the AC sensor cord of
Hotel's RLC-900 Line Conditioner/System Switcher. Please see
your Rotel dealer for full details on this system-enhancing prod¬
uct. The RLC-900 provides 11 filtered and group-isolated AC out¬
lets (including 2 specifically for power amplifiers) as well as
sequential turn-on and turn-off. It provides line ideal surge pro¬
tection for today's complex home entertainment systems.
System Calibration
Use the "Normal" ("Small") position if your Center Channel
speaker has more limited low frequency capability. Low fre¬
quencies below 100 Hz are redirected to the Front Left and Front
Right speakers (or to a subwoofer) so they will not overload the
center channel speaker. When NO subwoofer is used, all bass
frequencies below 100 Hz are sent to the FRONT LEFT and RIGHT
speakers. When a subwoofer IS used, bass from 100 Hz to 80 Hz
is sent to the Left Front and Right Front speakers while bass be¬
low 60 Hz is sent to the subwoofer.
Set the switch to the "Phantom" ("None") position if your sys¬
tem does not have a Center Channel speaker. The RSP-980 then
turns the Center Channel output OFF and divides the Center
Channel signal equally between Left and Right Front speakers. If
NO subwoofer is used, bass content is split equally between the
Proper system calibration (i.e., adjusting the output of all speak¬
ers to compensate for system and placement variations) is es¬
sential if you wish to enjoy a movie soundtrack as the director
and sound engineers intended.
The goal is simple: Calibration seeks to equalize any speaker
level differences caused by varying amplifier sensitivities,
speaker efficiencies, and speaker locations — in other words,
any possible system variations NOT controlled by the soundtrack
itself. Once a system is calibrated, the only level differences left
will be those dictated by the soundtrack.